Rat-exterminator.



C. BERG.

RAT ExTERmmAToR.

APPLICATION FILED DEC. I6. I9I5. Laws,

Patented; Mm. 27; 191:/

" I sirmione arr CARL BERG, OIF BROOKLYN NEW ASSIGOR TOVTHE BERG & BEARDiMANUAG;

TUBING comrAivY, INC., or'nnooinvn, NEW Yorin, n conrone'rroiv OF'NEW YORK.

:enr-rinrunmnvaron,

To all whom t may concern:

Be' 1t known that I, Garn Brno, a citizen of the United States," residing at Brooklyn,

county of Kings, and State of New York, have invented new and usefullmprovements 1n ,Rat-Exterminators, o which the following is a specification..

This invention has relation'to rat exterminators, Where heretofore in preparing com! positions of matter designed to exterminate rats andl mice, all regard has been given.

either to the deadly properties of the individual components of the composition, or to an arrangement vvhereby the composition approximated in appearance a piece of food, In no event has an attempt been made to have the composition conform in point of flavor and appearanceto the Varticle of'food desired to be imitated. Now when it is remembered that rats in selecting their food are guided solely'by the sense of smell rather than by what they see, then the reason will be obvious Why those exterminators composed of poisonous non-food smelling substances, and

formed in the shape of Well known articles of food, have failed to entice the rats to par-v take thereof.

Coming now to the present invention, Vthe general object thereof is to provide an. exterminator which will' have both the flavor and substantially all the physical character- -istics of a piece of' meat; And to this end the invention resides in providing a body of relatively soft but firm material, a food lavorlnp substance, and a toxic substance. The sald material and substances being so combined as to entice rats readily to partake thereof, and then operate to deceive the rat mates that of meat, as for instance, smokedlearn'.v In other words sponge will presen no greater resistance to beings* chewed-by the animal than would a piece or raw meat, .in

addition to'this, sponge has gr properties and, when satura an.

bec-rptive Specie'ationcf Letters Patent., Pet'tentellllal". 27, 1917. .Application ed December 16, 1915. Serial No.,57,1`38. l

The fiavoring substance of ,the composif tion consists of a compound containing two parts of rendered beef suet, and one part of q' bacon. I

A suitable composition may be prepared in accordance with the following illustrative speciiic formula, it being understood that the proportions oi the same may be substantially varied Without departing from the scope .of this invention:

The mass of sponge is'coinprsed of pieces each approximating the size ci a Walnut.4

The suet and bacon are melted together in 'a suitable receptacle by the .action of heat..

While the grease is hot and in a substantially A liquid state the mass of sponge'is added thereto. It will be understood that the pieces of sponge, prior toinnnersing them in the grease, are dry so that the substantially fluid grease Wit-l be readily absorbed upon mixing the pieces of sponge therewith.'

The mass of saturated sponge, when sulii ciently cool to permit of the ready 'han- (lling thereof, is transiex'red'to a second re-f ceptaclo and 1n beings() transferredv sufilcient hand pressure 1s applied to eect the removal ot Suche.' uantit Aof the rease il Y as. will leave'v the" piecesv .of is ongein a,-

moistand damp condition.l The' arnxm carbonate and the`corn starchare mixed to-` ther and the application of this mixture to t e pieces of sponge is effected by agitatingV the mass of sponge and dusting the mixture thereonto.

From the foregoing it will be observed 'I that an attractive and eiilcient exterminator arium carbonate Incorporated with each isprovided. The relativeiy small amount i of no piece of sponge is insnieient to produce harmful eifects 1n the event of being dcvoured by domestic. animals such. as dogs or l cats. But the amount is sufeient topioduce the desired toxic eect when taken into the stomach by a rat or mouse. rlihus it xviii. be seen that the barium carbonate cooperates with the sponge to create thirst when the composition is devoured by a rodent, and since the presence of thirst compels the rodent that has devoured the composition of the present invention, to seek Water, the undesirable feature of having rats or mice die in their nests or in the inni'iediate vicinity of the piace Where the extei'ininator has been distributed, is avoided.

V7 hat is claimed as new is:

1. A rodent exterminatoi' having the genn eral appearance of scraps of meat and comprising sponge, animal gi'ease and a toxic substance7 the sponge being saturated with the grease and the toxic-substance forming a coating foi' the sponge.

2. A rodent externinator having the gem eral appearance o1 scrapsofmeat and com- )iisinfb4 s A)on We animal vlease, and a. mixture including baiiuin. carbonate and a vegaa table substance in powdered form, the said sponge being` saturated by the grease and the mixture forming the coating foin the sponge.

3. A rodent exterminatoi having the .gen eral appearance of scraps of meat and compi'ising sponge7 a baiting substance ineludng a mixture of animal grease and meat and a toxic compound including barium carbonate and powdered vegetable mattei*` said sponge being saturated with the baiting substance and the toxic compound forming a coating for the sponge.

In testimony Wbefeof, I have signed ny name to this specification in the presence of two subscribing witnesses, this '15th day of December, 1915. c

CARL BERG. Witnesses ALICE ADAMS, M. E. LAUoHLiN. 

